Packaging article for rectangular objects

Abstract

A packaging article comprises first and second packaging members with one or more depressions and corresponding protrusions, respectively, and can be assembled with their each protrusion received within the corresponding depression. A transverse cross section of each depression is concave. A transverse cross section of each protrusion includes a secondary protrusion that forms a longitudinal ridge; a longitudinal cross section of the ridge comprises one or more concavities. A substantially rectangular object is place in a depression and the first and second packaging members are assembled. The object, received within the depression and located between the assembled packaging members, rests with two opposing edges of the object urged against the concave surface of the depression with corresponding lines of contact oriented substantially longitudinally, and with two other opposing edges of the object urged against the concavity.

1. A packaging article comprising:
 a first packaging member having one or more depressions on a first surface thereof; and 
 a second packaging member having one or more protrusions on a first surface thereof, 
 wherein: 
 the first and second packaging members are arranged to be assembled together with their respective first surfaces facing one another and with each protrusion of the second packaging member at least partly received within a corresponding one of the one or more depressions of the first packaging member; 
 a transverse cross section of each depression is concave; and 
 a transverse cross section, substantially parallel to the transverse cross section of the corresponding depression, of each protrusion includes a secondary protrusion, which secondary protrusion forms a ridge on the corresponding protrusion that extends along a first direction that is substantially orthogonal to the transverse cross section of the corresponding depression, wherein a cross section, substantially orthogonal to the transverse cross sections, of the ridge comprises a series of one or more concavities arranged along the first direction. 
 
     
     
       2. The packaging article of  claim 1  wherein at least one of the one or more depressions and at least one of the one or more concavities of a corresponding one of the one or more protrusions are arranged so that a substantially rectangular object, received within the at least one of the one or more depressions and located between the first surfaces of the first and second packaging members assembled together, rests with two opposing edges of the object urged against the concave surface of the at least one of the one or more depressions with corresponding lines of contact oriented substantially along the first direction, and with two other opposing edges of the object urged against the at least one of the one or more concavities of the corresponding one of the one or more protrusions. 
     
     
       3. The packaging article of  claim 2  wherein the first or second packaging member comprises a deformable packaging member arranged so as to deform upon urging the assembled first and second packaging members together with the object located and engaged between them. 
     
     
       4. The packaging article of  claim 3  wherein the deformable packaging member comprises a resilient packaging member. 
     
     
       5. The packaging article of  claim 2  further comprising a box bottom arranged to receive or retain the assembled first and second packaging members with the object located and engaged between them. 
     
     
       6. The packaging article of  claim 5  further comprising a box lid arranged to enclose the assembled first and second packaging members received within the box bottom. 
     
     
       7. The packaging article of  claim 1  wherein:
 the first packaging member includes multiple depressions and the second packaging member includes multiple corresponding protrusions; or 
 each corresponding ridge includes multiple concavities. 
 
     
     
       8. The packaging article of  claim 1  wherein the first packaging member, the second packaging member, or both the first and second packaging members comprise a molded plastic sheet. 
     
     
       9. A method for making a packaging article, the method comprising:
 forming a first packaging member with one or more depressions on a first surface thereof; and 
 forming a second packaging member with one or more protrusions on a first surface thereof, 
 wherein: 
 the first and second packaging members are arranged to be assembled together with their respective first surfaces facing one another and with each protrusion of the second packaging member at least partly received within a corresponding one of the one or more depressions of the first packaging member; 
 a transverse cross section of each depression is concave; and 
 a transverse cross section, substantially parallel to the transverse cross section of the corresponding depression, of each protrusion includes a secondary protrusion, which secondary protrusion forms a ridge on the corresponding protrusion that extends along a first direction that is substantially orthogonal to the transverse cross section of the corresponding depression, wherein a cross section, substantially orthogonal to the transverse cross sections, of the ridge comprises a series of one or more concavities arranged along the first direction. 
 
     
     
       10. The method of  claim 9  wherein at least one of the one or more depressions and at least one of the one or more concavities of a corresponding one of the one or more protrusions are arranged so that a substantially rectangular object, received within the at least one of the one or more depressions and located between the first surfaces of the first and second packaging members assembled together, rests with two opposing edges of the object urged against the concave surface of the at least one of the one or more depressions with corresponding lines of contact oriented substantially along the first direction, and with two other opposing edges of the object urged against the at least one of the one or more concavities of the corresponding one of the one or more protrusions. 
     
     
       11. The method of  claim 10  wherein the first or second packaging member comprises a deformable packaging member arranged so as to deform upon urging the first and second packaging members together with the object located and engaged between them. 
     
     
       12. The method of  claim 11  wherein the deformable packaging member comprises a resilient packaging member. 
     
     
       13. The method of  claim 10  further comprising providing a box bottom arranged to receive or retain the assembled first and second packaging members with the object located and engaged between them. 
     
     
       14. The method of  claim 13  further comprising providing a box lid arranged to enclose the assembled first and second packaging members received within the box bottom. 
     
     
       15. The method of  claim 9  wherein:
 the method further comprises forming multiple depressions on the first surface of the first packaging member and multiple corresponding protrusions on the first surface of the second packaging member; or 
 each corresponding ridge includes multiple concavities. 
 
     
     
       16. The method of  claim 9  wherein forming the first packaging member, the second packaging member, or both the first and second packaging members comprises molding a plastic sheet. 
     
     
       17. A method for using a packaging article, the method comprising:
 placing a substantially rectangular object in a depression on a first surface of a first packaging member having one or more depressions on a first surface thereof; and 
 assembling a second packaging member onto the first packaging member with a first surface of the second packaging member facing the first surface of the first packaging member, wherein the second packaging member has one or more protrusions on a first surface thereof, 
 wherein: 
 the first and second packaging members are arranged so that, when assembled together with their respective first surfaces facing one another, each protrusion of the second packaging member is at least partly received within a corresponding one of the one or more depressions of the first packaging member; 
 a transverse cross section of each depression is concave; 
 a transverse cross section, substantially parallel to the transverse cross section of the corresponding depression, of each protrusion includes a secondary protrusion, which secondary protrusion forms a ridge on the corresponding protrusion that extends along a first direction that is substantially orthogonal to the transverse cross section of the corresponding depression, wherein a cross section of the ridge comprises a series of one or more concavities arranged along the first direction; and 
 at least one of the one or more depressions and at least one of the one or more concavities of a corresponding one of the one or more protrusions are arranged so that the object rests with two opposing edges of the object urged against the concave surface of the at least one of the one or more depressions with corresponding lines of contact oriented substantially along the first direction, and with two other opposing edges of the object urged against the at least one of the one or more concavities of the corresponding one of the one or more protrusions. 
 
     
     
       18. The method of  claim 17  wherein the first or second packaging member comprises a deformable packaging member arranged so as to deform upon urging the first and second packaging members together with the object located and engaged between them. 
     
     
       19. The method of  claim 18  wherein the deformable packaging member comprises a resilient packaging member. 
     
     
       20. The method of  claim 17  further comprising placing the assembled first and second packaging members, with the object located and engaged between them, in a box bottom arranged to receive or retain the assembled packaging members. 
     
     
       21. The method of  claim 20  further comprising placing a box lid on the box bottom to enclose the assembled first and second packaging members received within the box bottom. 
     
     
       22. The method of  claim 17  wherein:
 the first packaging member includes multiple depressions and the second packaging member includes multiple corresponding protrusions; or 
 each corresponding ridge includes multiple concavities. 
 
     
     
       23. The method of  claim 17  wherein the first packaging member, the second packaging member, or both the first and second packaging members comprise a molded plastic sheet.